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Metabolomic Approaches to Bioactive Molecules Discovery

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Informatics".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 1410

Special Issue Editor

Special Issue Information

Dear Colleagues,

Metabolomics is a systematic approach for an in-depth analysis of complex mixtures in order to identify their secondary metabolites. These metabolites, characterized by a high chemical complexity, can perform crucial functions for the understanding of metabolic processes. The levels of metabolites can alter following exposure to external stress conditions. Therefore, the application of highly sensitive analytical techniques for the detection of these metabolites becomes essential. The use of untargeted metabolomics methods based on ultra-high performance liquid chromatography-mass spectrometry (UPLC-MS), gas chromatography-mass spectrometry (GC-MS) and also nuclear magnetic resonance (NMR) are ideal for exploring metabolic pathways and detecting biomarkers. Environmental metabolomics have immense potential and represent the routine tool for elucidating the relationships between metabolite levels expressed by organisms and environmental stress and for describe metabolic profiling and fingerprinting.

Dr. Stefania Garzoli
Guest Editor

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Keywords

  • metabolites
  • metabolomic profile
  • chromatographic and spectrometric techniques
  • NMR
  • bioactive compounds
  • markers

Published Papers (1 paper)

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Research

15 pages, 592 KiB  
Article
Metabolomic Approach Based on Analytical Techniques for the Detection of Secondary Metabolites from Humulus lupulus L. Dried Leaves
by Cosimo Taiti, Giacomo Di Matteo, Mattia Spano, Vittorio Vinciguerra, Elisa Masi, Luisa Mannina and Stefania Garzoli
Int. J. Mol. Sci. 2023, 24(18), 13732; https://doi.org/10.3390/ijms241813732 - 6 Sep 2023
Cited by 1 | Viewed by 944
Abstract
Currently, the leaves of the hop plant (Humulus lupulus L.) are an unexploited and still little-investigated agricultural by-product. In our study, with the aim of exploring the metabolome of dried hop leaves (Chinook cultivar), a metabolomic approach was applied using multiple analytical [...] Read more.
Currently, the leaves of the hop plant (Humulus lupulus L.) are an unexploited and still little-investigated agricultural by-product. In our study, with the aim of exploring the metabolome of dried hop leaves (Chinook cultivar), a metabolomic approach was applied using multiple analytical tools such as SPME/GC–MS, GC–MS, PTR-ToF-MS, and NMR to identify the secondary metabolites. The obtained results showed the presence of a high number of components belonging to different chemical classes. In fact, thanks to the multi-methodological approach, volatile organic compounds (VOCs) with low molecular weight, terpenic compounds, fatty acids, sugars, amino acids, organic acids, and alcohols have been detected and identified. Among the revealed terpenes in the untreated matrix, the sesquiterpenes α-humulene, β-caryophyllene, and α-copaene were the most abundant. Among the saturated and unsaturated fatty acids, palmitic and linolenic acids, respectively, were those with the highest relative percentages. Particularly relevant was the sugar content, where sucrose was the main exponent while glutamate and asparagine were the principal detected amino acids. Conversely, alcohols and organic acids were the least abundant compound classes, and xanthohumol was also identified in the methanolic extract. Full article
(This article belongs to the Special Issue Metabolomic Approaches to Bioactive Molecules Discovery)
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